INGREDIENTS
3 oz
French-style cooked ham
2
Leeks, medium
1 tsp
Dijon mustard
1 tbsp
All-purpose flour
1
Kosher salt and freshly ground black pepper
1
Croissant, large
3 tbsp
Butter, unsalted
2 oz
Cheddar or gruyere cheese, grated aged white
3/4 cup
Milk